221357360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 160

約数和(自身を含む): 623960064

約数和(自身を除く): 402602704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 41, 56, 62, 70, 80, 82, 112, 124, 140, 155, 164, 205, 217, 248, 280, 287, 310, 311, 328, 410, 434, 496, 560, 574, 620, 622, 656, 820, 868, 1085, 1148, 1240, 1244, 1271, 1435, 1555, 1640, 1736, 2170, 2177, 2296, 2480, 2488, 2542, 2870, 3110, 3280, 3472, 4340, 4354, 4592, 4976, 5084, 5740, 6220, 6355, 8680, 8708, 8897, 9641, 10168, 10885, 11480, 12440, 12710, 12751, 17360, 17416, 17794, 19282, 20336, 21770, 22960, 24880, 25420, 25502, 34832, 35588, 38564, 43540, 44485, 48205, 50840, 51004, 63755, 67487, 71176, 77128, 87080, 88970, 89257, 96410, 101680, 102008, 127510, 134974, 142352, 154256, 174160, 177940, 178514, 192820, 204016, 255020, 269948, 337435, 355880, 357028, 385640, 395281, 446285, 510040, 539896, 674870, 711760, 714056, 771280, 790562, 892570, 1020080, 1079792, 1349740, 1428112, 1581124, 1785140, 1976405, 2699480, 2766967, 3162248, 3570280, 3952810, 5398960, 5533934, 6324496, 7140560, 7905620, 11067868, 13834835, 15811240, 22135736, 27669670, 31622480, 44271472, 55339340, 110678680, 221357360]

約数ペア:

[(1, 221357360), (2, 110678680), (4, 55339340), (5, 44271472), (7, 31622480), (8, 27669670), (10, 22135736), (14, 15811240), (16, 13834835), (20, 11067868), (28, 7905620), (31, 7140560), (35, 6324496), (40, 5533934), (41, 5398960), (56, 3952810), (62, 3570280), (70, 3162248), (80, 2766967), (82, 2699480), (112, 1976405), (124, 1785140), (140, 1581124), (155, 1428112), (164, 1349740), (205, 1079792), (217, 1020080), (248, 892570), (280, 790562), (287, 771280), (310, 714056), (311, 711760), (328, 674870), (410, 539896), (434, 510040), (496, 446285), (560, 395281), (574, 385640), (620, 357028), (622, 355880), (656, 337435), (820, 269948), (868, 255020), (1085, 204016), (1148, 192820), (1240, 178514), (1244, 177940), (1271, 174160), (1435, 154256), (1555, 142352), (1640, 134974), (1736, 127510), (2170, 102008), (2177, 101680), (2296, 96410), (2480, 89257), (2488, 88970), (2542, 87080), (2870, 77128), (3110, 71176), (3280, 67487), (3472, 63755), (4340, 51004), (4354, 50840), (4592, 48205), (4976, 44485), (5084, 43540), (5740, 38564), (6220, 35588), (6355, 34832), (8680, 25502), (8708, 25420), (8897, 24880), (9641, 22960), (10168, 21770), (10885, 20336), (11480, 19282), (12440, 17794), (12710, 17416), (12751, 17360)]